Additional Information

Britsh Standard 718 Glass Hydrometers are precision instruments ideal for laboratory use for the accurate determinaton of the Density or Specific Gravity of liquids. They can be supplied with Works or UKAS Certfied Calibraton Certficates traceable to Natonal Standards. Density Hydrometers are graduated in grammes per millilitre @ 20°C based on the principle that: “ Density (g/ml.) of a liquid at temperature ‘t’ is the mass in grammes per millilitre of the liquid at ‘t’.” Specific Gravity Hydrometers are graduated @ 60/60°F based on the principle that: “ The Specific Gravity t1/t2 of a liquid =

Mass of a given volume of liquid at temperature t1 Mass of an equal volume of pure water at temperature t2

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